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SN74AVC1T45DCKR

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by Ray

Texas Instruments 74 Series, SC-70-6. Datasheet-verified pinout, KiCad symbol/footprint/3D.

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Datasheet

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Contents

README

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SN74AVC1T45DCKR

Texas Instruments · 74 Series · SC-70-6

SN74AVC1T45DCKR from Texas Instruments, in a SC-70-6. Pinout and pin descriptions extracted from the manufacturer datasheet by ds2sf; symbol, footprint, and 3D from KiCad-official CAD.

Pinout

Pin Name Type Function
1 VCCA power_in A-port supply voltage. Sets the logic level for the A side. Operating range 1.2 V ≤ VCCA ≤ 3.6 V. Bypass locally with a ceramic capacitor.
2 GND power_in Device ground reference for both supply rails.
3 A bidirectional A-side data I/O, referenced to VCCA. Acts as input when DIR = HIGH (A→B) and as output when DIR = LOW (B→A). Typical drive ±12 mA at 3.3 V; I/Os are 4.6 V tolerant.
4 B bidirectional B-side data I/O, referenced to VCCB. Acts as output when DIR = HIGH (A→B) and as input when DIR = LOW (B→A). Typical drive ±12 mA at 3.3 V; I/Os are 4.6 V tolerant.
5 DIR input Direction control signal, referenced to VCCA. DIR = HIGH transmits A→B; DIR = LOW transmits B→A. Powered by VCCA.
6 VCCB power_in B-port supply voltage. Sets the logic level for the B side. Operating range 1.2 V ≤ VCCB ≤ 3.6 V. If either VCCA or VCCB is at GND, both ports enter high-impedance (VCC isolation).

Key specifications

Parameter Value
Manufacturer Texas Instruments
Package SC-70-6
Category Logic ICs
Pins 6

Ordering variants

Same part, different packaging or reel option.

  • SN74AVC1T45DCKR
  • SN74AVC1T45DCKRDCKT
  • SN74AVC1T45DCKRDBVR
  • SN74AVC1T45DCKRDBVT
  • SN74AVC1T45DCKRDRLR
  • SN74AVC1T45DCKRYZPR

CAD (KiCad official)

  • Symbol: SN74AVC1T45DCKR
  • Footprint: Package_TO_SOT_SMD:SOT-363_SC-70-6
  • 3D model: SC-70-6 (KiCad packages3D, STEP)

Provenance

Data extracted from the manufacturer datasheet, not a distributor listing:

  • Datasheet: Texas Instruments datasheet (42 pp, sha256 de9ae63b763d0829, retrieved 2026-08-17, tier: manufacturer)
  • Extractor: ds2sf (Claude). Every pin and dimension is cited to a datasheet page; it refuses to fabricate.
  • CAD: KiCad official libraries (CC-BY-SA 4.0).

Datasheet PDF